The IACOB project - V. Spectroscopic parameters of the O-type stars in the modern grid of standards for spectral classificationG. Holgado, S. Simón-Díaz, R. H. Barbá, J. Puls, A. Herrero, N. Castro, M. Garcia, J. Maíz Apellániz, I. Negueruela and C. Sabín-SanjuliánA&A, 613 (2018) A65DOI: https://doi.org/10.1051/0004-6361/201731543
